I've noticed that almost each time this "login-crash" happens, there are two cpu-eating process corpses from the crashed session: nautilus and compiz.
Also there are graphical glitches in the top left corner of the screen. See the attached screenshot. ** Attachment added: "Graphical glitches after X session crash" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/658139/+attachment/1755048/+files/after_x_crash.jpg -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. https://bugs.launchpad.net/bugs/658139 Title: X server crashes shortly after logging in _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp